package operation;

import book.BookList;

public class ExitOperation implements IOPeration{
    public void work(BookList bookList){
        System.out.println("退出系统...");
        int currentSize = bookList.getUsedSize();
        for (int i=0;i<currentSize;i++){
            bookList.setBook(i,null);
        }
        System.exit(0);
    }
}
